Hi, Looking for two cylinder heads for 599 GTB, car was overheated and two heads are bend badly and can't be reused. Ferrari has discontinued production of heads for this car New engine is 77,000 euro Thanks.
You would need to have a shop pull them and create a 3D model of one. I know Competizone & Sports Cars did this a while back for a rare engine. They are a sponsor here so they should be easy to find. Give Fernando and Richard a call. I’m not sure what other alternatives you have.
It would be a cool project. No small amount of work though to scan then draw out a complete 6 cylinder head. Then its going to be a monster of a 3d printer to make one. A pal of mine purchased a used 599 engine for £18k last year. I think thats your best bet. In fact, the heads form his old engine are probably fine; I can see if its possible to track down where they are. Lastly I would definitely be getting a 2nd opinion on whether your current heads can be salvaged.
I'm no expert here but it would appear that you could add material to the bottom of a head and then machine them flat again. Sure, there may be some tiny variance between cylinders but that should be inexpensive (relatively) and it should work fine.
Heads are bend over 0.6mm, in normal car you can shave it on side where is head gasket but in my case is no possible, on top of the head you are installing camshaft and this need to by flat as well but is not....
A quick search on eBay shows at least three used 599 engines for sale. There are numerous breakers that would also have engines available. The used engines start at $18,500 on eBay.
There is no need to replace the heads. Take it to a laser welder who will be able to add a skim of weld to the whole head. This weld is done with very little heat and is commonly used for repairing injection molding tools so you can be sure it is 100% with zero porosity. Once welded the head can be re-skimmed to spec and it will operate exactly as new. The same can be done on the cam journals and have them re-machined to spec. On a less expensive engine this is not a viable option because the labor to weld the heads is more than the cost of most new castings. In the case of a 599 where you are looking at over $10K or more then welding the heads makes economic sense as the whole job can be done for a fraction of the money.
thanks for your replay, but please explain me what I need to do with holes for camshafts? holes are not in line. When I installing camshaft and torque caps what holding camshaft I'm bending camshaft to match head, I will say this again head is not only bend on side of head gasket.
Yes I understood that the cams are also out of alignment. You can weld the 'holes' the cams pass through and have them re-machined.
Exactly. It takes some specialized equipment but you can re-bore the can holes so they are all in line.
A bit unconventional but you might be able to re-flatten the heads using heat. It would require a sturdy jig, slight elevation/shimming at point of max warp and then use the outer head bolts to apply tension. Use heat as you continue to apply tension. Any remaining minor unevenness could be machined.
Hi My opinion Try to get a used engine and take the heads or the complete engine. To be honest This is no farmer machine engine where you drill here and bend there. This is a 8400 rpm high end engine. I was in a similar situation and sold the car last Thuesday. I will write more in another thread. Daniel
Hi, you are 100% right!!! You are the first person to know what this talks about, I don't want to offend others members how want to help me but clearly they not know enough about high performance engines and later reliability of engine after repaired this way. Probably no one from members would want to buy an engine repaired this way where heads are solder, machined, drilled etc.
Too much heat in parts like heads does the most unexpected things when getting warm again. Then, you spend thousands of $ in a repair, nobody can say exactly what the material does in the future and what problems come up. 77k$ seems not very much for a new engine. I know prices with 90k€ netto (listed at Eurospares for example) If the car is in fine condition and you want to hold the car for a longer time, think about getting a new engine. Daniel
As a clarification my suggestion does not come from lack of experience or knowledge. I have been racing and building cars for over 30 years with extensive experience in all sorts of engines from 20,000 RPM 2-stroke screamers to motorcycle road race engines, and all sorts of car engines ranging from 2-12 cylinders. I also head the engineering arm of an automotive manufacturing company that supplies the OEM and regularly work with powertrain engineers at the highest level. This subject is in my area of expertise and I would not offer advice I would not take myself. As it happens just yesterday I was together with perhaps the two most experienced Lamborghini techs from the Murcielago era around. These guys have so much experience that Lamborghini calls them for advice because they have worked on so many of these cars. That said I mentioned to them your issue and they told me that welding journals and re-machining them was common practice and fully approved by Lamborghini. Also welding and skimming heads was also done on engines where the parts were absurdly expensive to replace (sound familiar?). Engines repaired in this fashion went on to work perfectly well with no future issues. In addition it is not uncommon at the OEM level for head castings to be welded and re-machined rather than scrapped. In the end you will believe what you want and if you are pre-disposed to believe that the heads cannot be repaired than please do not take my advice. Just know that your ideas are not based on any engineering fact or first hand experience but rather ignorance and fear. This is ok just know that such lack of knowledge normally comes with a big price tag associated with it to ensure your piece of mind.
I agree with Nuvolari, a qualified shop should be able to get the preheats exact to the casting alloy and weld with the correct metal for a repair, I’ve know of racers doing this to heads to change valve angles etc...
In his defense, the idea of using shims and head bolts to straighten the head is a bad idea. If you could just crank it down harder and get rid of the warp there wouldn't be a need to have them flat at all, just crank it down. But we all know that doesn't work. Warping is caused by uneven expansion that essentially exceeds the elastic limits of the metal in localized places (it is not an overall change but localized locations throughout the material). This makes it impossible to get them flat (within thousandths) without machining away the bumps and filling the low spots.
If you can get a working set of heads for $6k, by all means do that. If you can't find heads at reasonable cost, you might try salvaging the ones you have. 0.6mm of warp on a long aluminum casting isn't the end of the world. Uniform heating in a jig would likely relieve the stress. Ideally you'd follow the aluminum annealing guidelines.
